/**
 * Copyright 2013-2025 the original author or authors from the JHipster project.
 *
 * This file is part of the JHipster project, see https://www.jhipster.tech/
 * for more information.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import type { ReadonlyDeep } from 'type-fest';

import type { JHipsterCommandDefinition } from '../lib/command/index.ts';

function deepFreeze<const T>(obj: T): ReadonlyDeep<T> {
  if (obj && typeof obj === 'object' && !Object.isFrozen(obj)) {
    Object.keys(obj).forEach(key => {
      deepFreeze((obj as any)[key]);
    });
    Object.freeze(obj);
  }
  return obj as ReadonlyDeep<T>;
}

/**
 * Type inferring function to create a JHipster command definition.
 * Freezes the object to prevent further modifications.
 */
export const asCommand = <const Def extends JHipsterCommandDefinition>(command: Def): ReadonlyDeep<Def> => deepFreeze(command);
